SQL Server install

{

　　https://www.cnblogs.com/ios9/p/9527939.html

　　https://www.cnblogs.com/ios9/p/9527815.html

　　//在安装工具中 安装 studio 需要额外下载连接

　　//https://docs.microsoft.com/zh-cn/sql/ssms/download-sql-server-management-studio-ssms?redirectedfrom=MSDN&view=sql-server-ver15

}